Originally it was going to be for those who signed up for the fest, but after a brief discussion with tielan, we've decided that yes, non-participants can add their names to the potential treats bag. There is the caveat, of course, that we cannot guarantee you will receive a remix unless you sign up for the official challenge.

If you are a non-participant, we would like to encourage you to sign up for the pinch-hit list as well. :)